Pomfort has released Silverstack v9.1, which adds support for the ARRI ALEXA 35 Xtreme / ARRICORE and Canon EOS C50, plus improved variable frame rate handling.
What’s new in version 9.1?
Format Support
- ALEXA 35 Xtreme / ARRICORE: Added support for the new ARRI camera and codec, including custom RAW settings for ARRICORE.
- Canon EOS C50: Added support for footage from the new Canon camera.
- Variable frame rate: Full support for playback and transcoding of clips with minor frame rate shifts; basic playback support for clips with significant shifts.
- Apple Log 2: Integrated official Apple Log 2 → Rec.709 Preset LUT.
Jobs & Workflows
- Workflow validation: Better communication of common error cases (e.g., not enough space on destination).
- Job priorities: Pre-configure job priorities in the workflow configuration.
- Task concurrency settings: Immediate evaluation of changed volume performance settings.
- Retry & overwrite: Better recovery options from “File Exist” errors.
Diverse Improvements
- S3 bucket upload: Better support of custom endpoints.
- Playback: Better update behavior after grading changes, less black frames on external SDI displays when switching looks.

